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520544 
Journal Article 
Detection limit enhancement of Cd, Ni, Pb and Zn determined by flame atomic absorption spectroscopy 
Shaltout, AA; Ibrahim, MA 
2007 
Yes 
Canadian Journal of Analytical Sciences and Spectroscopy
ISSN: 1205-6685 
52 
5 
276-286 
English 
In the present work, the optimization of the different parameters including absorbance mode and the measuring time is promising for lowering detection limits for flame atomic absorption spectroscopy. Results indicate that the limit of detection could be enhanced with adapting the absorbance mode as well as the measurement times. The optimum measuring time was 6 sec while using peak height as the absorbance mode for Ni and peak area for the remaining metals. The calculated detection limits were 9.0, 3.0, 9.0 and 3.0 mu gL(-1) for Cd, Ni, Pb and Zn respectively. Therefore, one can extend the concentration of the trace elements to very low values, and some graphite furnace measurements can be replaced by FAAS. 
Detection Limit; FAAS; Flame parameters; online preconcentration system; spectrometry; samples; cadmium; turkey; water